Recently, we reported on a recursive algorithm enabling real-time object-ba
sed motion estimation (OME) of standard definition video on a digital signa
l processor (DSP). The algorithm approximates the motion of the objects in
the image with parametric motion models and creates a segmentation mask by
assigning to every block in the image the best matching model. It was found
that the calculation of the segmentation mask was most critical for both t
he real-time behaviour and the quality of the motion vector field. This pub
lication details the motion segmentation module and discusses a number of o
ptions which improve the quality/complexity ratio of the motion segmentatio
n.